8.25 ZJ disc swap - Backing plate/mounting bracket one piece?

I'm in the middle of trying to get all the parts for a Disc swap on an 8.25.

I ordered "backing plates" from the dealership the other day that looked in the diagram the guy in the parts dept showed me to be the parts that the caliper bolted to, and since they were cheap I ordered them anyways.

Now I'm thinking they're just those flimsy pieces of sheet metal that go behind the rotors, that what I need is properly called the caliper mounting brackets. I've seen a couple of sites that reference these parts, but at least one of those write ups makes it look like the pieces are one and the same...

Did I just order the sheet metal bits? Not a big deal, I'll just need to track down the other parts yet if I did....

According to my notes, msrp of $124 ea. for the brackets and $22 ea. for the dust shields.

THe dust shields are needed if you want to retain the stock ZJ ebrakes.